Host Resources MIB - RFC 2790

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Host Resources MIB- RFC 2790

• Yen-Cheng Chen
• IM, NCNU

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MIBs Supported in Windows XP

• MIB-II (RFC 1213)
• Host Resource MIB (RFC 2790)
• LAN Manager MIB-II (.1.3.6.1.4.1.77)
• Microsoft DHCP server MIB (.1.3.6.1.4.1.311.1.3)
• Microsoft Internet Information Server MIB
  (.1.3.6.1.4.1.311.1.7)
• Microsoft WINS server MIB (.1.3.6.1.4.1.311.1.2)

? Using SNMP for Network Management
? MIB Object Types for Windows NT
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References

• RFCs
• RFC 2790 Host Resources MIB
• Modules
• HOST-RESOURCES-MIB ( HR-MIB )
• HOST-RESOURCES-TYPES ( HR-TYPES )

• Lab. Files (php)
• http//ycchen.im.ncnu.edu.tw/nm/hr-php.zip
• Lab. Files (Java projects)
• snmpwalk.java, getTable.java
• http//www.im.ncnu.edu.tw/ycchen/nm/getTable.zip

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Management of Host Computers

• Host Resources MIB defines a uniform set of
  objects useful for the management of host
  computers.
• Objects which also provide host management
  functionality.
• system group in SNMPv2-MIB RFC1907
• interfaces group IF-MIB RFC2233

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Groups of Host Resources MIB

• host OBJECT IDENTIFIER mib-2 25
• 1.3.6.1.2.1.25
• 6 Groups
• hrSystem OBJECT IDENTIFIER host 1
• hrStorage OBJECT IDENTIFIER host 2
• hrDevice OBJECT IDENTIFIER host 3
• hrSWRun OBJECT IDENTIFIER host 4
• hrSWRunPerf OBJECT IDENTIFIER host 5
• hrSWInstalled OBJECT IDENTIFIER host 6
• hrMIBAdminInfo OBJECT IDENTIFIER host 7

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1. hrSystem HR System Group

• hrSystemUptime hrSystem 1
• hrSystemDate hrSystem 2
• hrSystemInitialLoadDevice hrSystem 3
• hrSystemInitialLoadParameters hrSystem 4
• hrSystemNumUsers hrSystem 5
• hrSystemProcesses hrSystem 6
• hrSystemMaxProcesses hrSystem 7

Index of the hrDeviceEntry
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hrSystem Example
java snmpwalk c community m HR-MIB 10.10.13.7
hrSystem

• host.hrSystem.hrSystemUptime.0
• 14 days, 17 hours, 10 minutes, 28
  seconds.
• host.hrSystem.hrSystemDate.0 2006-4-2,95514.0
• host.hrSystem.hrSystemInitialLoadDevice.0 0
• host.hrSystem.hrSystemInitialLoadParameters.0
• host.hrSystem.hrSystemNumUsers.0 2
• host.hrSystem.hrSystemProcesses.0 66
• host.hrSystem.hrSystemMaxProcesses.0 0

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2. hrStorage HR Storage Group

• (Oid) hrStorageTypes hrStorage 1
• hrMemorySize hrStorage 2
• hrStorageTable hrStorage 3
• hrStorageEntry hrStorageTable 1
• hrStorageIndex hrStorageEntry 1
• hrStorageType hrStorageEntry 2
• hrStorageDescr hrStorageEntry 3
• hrStorageAllocationUnits hrStorageEntry 4
• hrStorageSize hrStorageEntry 5
• hrStorageUsed hrStorageEntry 6
• hrStorageAllocationFailures hrStorageEntry 7

(Size of RAM in Kbytes)
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hrStorage Example

• host.hrStorage.hrMemorySize.0 1031472

(KBytes)
? 0.98 GBytes
(bytes)
java getTable 127.0.0.1 community
hrStorageTable HR-MIB HR-TYPES gt
hrStorageTable.html
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Php Example
realtable.php

• lt?php
• snmp_set_quick_print(true)
• snmp_read_mib("hrTypes.txt")
• host "127.0.0.1"
• community "public"
• oid "HOST-RESOURCES-MIBhrStorageTable"
• arr realtable(host, community, oid, 7)
• ?gt

C\usr\mibs\HOST-RESOURCES-TYPES.txt
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Example
hrStorageDescr C\... hrStorageAllocationUnits 4
096 hrStorageSize 11442296 hrStorageUsed 4739161
Disk Capacity (bytes) 11442296 4096
46867644416 Available Disk Space ()
(11442296-4739161)/11442296 100 58.6
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3. hrDevice HR Device Group

• (Oid) hrDeviceTypes hrDevice 1
• hrDeviceTable hrDevice 2
• hrProcessorTable hrDevice 3
• hrNetworkTable hrDevice 4
• hrPrinterTable hrDevice 5
• hrDiskStorageTable hrDevice 6
• hrPartitionTable hrDevice 7
• hrFSTable hrDevice 8

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hrDeviceTable
- The table of devices contained by the host

• hrDeviceTable hrDevice 2
• hrDeviceEntry hrDeviceTable 1
• hrDeviceIndex hrDeviceEntry 1
• hrDeviceType hrDeviceEntry 2
• hrDeviceDescr hrDeviceEntry 3
• hrDeviceID hrDeviceEntry 4
• hrDeviceStatus hrDeviceEntry 5
• hrDeviceErrors hrDeviceEntry 6

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hrDeviceTable Example
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hrProcessorTable
- The table of processors

• hrProcessorTable hrDevice 3
• hrProcessorEntry hrProcessorTable 1
• hrProcessorFrwID hrProcessorEntry 1
• - Product ID of Firmware
• hrProcessorLoad hrProcessorEntry 2
• - The average, over the last minute, of the
  percentage of time that this processor was not
  idle.

hrDeviceIndex
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hrNetworkTable
- The table of network devices

• hrNetworkTable hrDevice 4
• hrNetworkEntry hrNetworkTable 1
• hrNetworkIfIndex hrNetworkEntry 1

hrDeviceIndex
ifTable
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hrPrinterTable

• hrPrinterTable hrDevice 5
• hrPrinterEntry hrPrinterTable 1
• hrPrinterStatus hrPrinterEntry 1
• hrPrinterDetectedErrorState hrPrinterEntry 2

other(1), unknown(2), idle(3), printing(4),
warmup(5)
Bits
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hrDiskStorageTable
- The table of long-term storage devices

• hrDiskStorageTable hrDevice 6
• hrDiskStorageEntry hrDiskStorageTable 1
• hrDiskStorageAccess hrDiskStorageEntry 1
• hrDiskStorageMedia hrDiskStorageEntry 2
• hrDiskStorageRemoveble hrDiskStorageEntry 3
• hrDiskStorageCapacity hrDiskStorageEntry 4

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hrDiskStorageTable Example
KBytes
hrDeviceIndex
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hrPartitionTable
- The table of partitions for long-term storage
devices

• hrPartitionTable hrDevice 7
• hrPartitionEntry hrPartitionTable 1
• hrPartitionIndex hrPartitionEntry 1
• hrPartitionLabel hrPartitionEntry 2
• hrPartitionID hrPartitionEntry 3
• hrPartitionSize hrPartitionEntry 4
• hrPartitionFSIndex hrPartitionEntry 5

FS File System
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hrPartitionTable Example
KBytes
hrDeviceIndex
hrPartitionIndex
1 2 3 4 5
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hrFSTable
- The table of file systems local or remotely
mounted

• hrFSTable hrDevice 8
• hrFSEntry hrFSTable 1
• hrFSIndex hrFSEntry 1
• hrFSMountPoint hrFSEntry 2
• hrFSRemoteMountPoint hrFSEntry 3
• hrFSType hrFSEntry 4
• hrFSAccess hrFSEntry 5
• hrFSBootable hrFSEntry 6
• hrFSStorageIndex hrFSEntry 7
• hrFSLastFullBackupDate hrFSEntry 8
• hrFSLastPartialBackupDate hrFSEntry 9

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hrFSTable Example
January 1, year 0000, 000000.0
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4. hrSWRun HR Running Software Group

• hrSWOSIndex hrSWRun 1
• hrSWRunTable hrSWRun 2
• hrSWRunEntry hrSWRunTable 1
• hrSWRunIndex hrSWRunEntry 1
• hrSWRunName hrSWRunEntry 2
• hrSWRunID hrSWRunEntry 3
• hrSWRunPath hrSWRunEntry 4
• hrSWRunParameters hrSWRunEntry 5
• hrSWRunType hrSWRunEntry 6
• hrSWRunStatus hrSWRunEntry 7

unknown(1), operatingSystem(2),
deviceDriver(3),
application(4)
running(1), runnable(2), notRunn
able(3), invalid(4)
hrSWRunType
hrSWRunStatus
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hrSWRunTable Example
- The table of software running on the host
hrSWRun.hrSWOSIndex.0 4
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5. hrSWRunPerf HR Running Software
Performance Group

• hrSWRunPerfTable hrSWRunPerf 1
• hrSWRunPerfEntry hrSWRunPerfTable 1
• hrSWRunPerfCPU hrSWRunPerfEntry 1
• - Number of centi-seconds of the CPU
  resources
• consumed by this process.
• hrSWRunPerfMem hrSWRunPerfEntry 2
• - The total amount of real system memory
  allocated to
• this process. (in Kbytes)

- The table of running software performance
metrics
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hrSWRunPerfTable Example

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6. hrSWInstalled HR Installed Software Group
hrSWInstalled 1 hrSWInstalled 2
hrSWInstalled 3 hrSWInstalledTable 1
hrSWInstalledEntry 1 hrSWInstalledEntry 2
hrSWInstalledEntry 3 hrSWInstalledEntry 4
hrSWInstalledEntry 5

• hrSWInstalledLastChange
• hrSWInstalledLastUpdateTime
• hrSWInstalledTable
• hrSWInstalledEntry
• hrSWInstalledIndex
• hrSWInstalledName
• hrSWInstalledID
• hrSWInstalledType
• hrSWInstalledDate

unknown(1), operatingSystem(2),
deviceDriver(3),
application(4)
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hrSWInstalledTable Example